In 1984 Mason Durie documented a framework for understanding Māori health, Te Whare Tapa Wha, which has subsequently become embedded in Māori health policy. In addition, the adoption of this framework is now widespread among Māori and Iwi health and disability service providers and clinicians. Within psychological practice Te Whare Tapa Wha forms the foundation of a number of practice frameworks. This article presents a specifi c assessment framework, the Meihana Model, which encompasses the four original cornerstones and inserts two additional elements. These form a practice model (alongside Māori beliefs, values and experiences) to guide clinical assessment and intervention with Māori clients and whanau accessing mental health services. This paper outlines the rationale for and background of the Meihana Model and then describes each dimension: whanau, wairua, tinana, hinengaro, taiao and iwi katoa. The model provides a basis for a more comprehensive assessment of clients/whanau that then underpins appropriate treatment decisions.